Abstract
Formation of cellular detonation in bi-fractional stoichiometric mixtures of aluminum particles and oxygen is investigated numerically. The detonation cell size depends on the particle diameters and relative concentration of the fractions. Certain degeneration of cellular detonation is obtained when compared to the monodisperse mixtures. It is characterized by maximal pressure decrease, transverse wave relaxation and detonation front rectification. Complete degeneration of cellular detonations and stable propagation of a plane detonation front is found in some bi-fractional mixtures. The numerical results are confirmed by acoustic analysis of the detonation structures.
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Communicated by L. Bauwens.
This paper is based on work that was presented at the 21st International Colloquium on the Dynamics of Explosions and Reactive Systems, Poitiers, France, July 23–27, 2007.
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Fedorov, A.V., Khmel, T.A. Cellular detonations in bidispersed gas-particle mixtures. Shock Waves 18, 277–280 (2008). https://doi.org/10.1007/s00193-008-0145-y
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DOI: https://doi.org/10.1007/s00193-008-0145-y